窄环隙内强迫对流换热特性的实验研究Experimental study on heat transfer characteristics with forced convection in narrow annulus
路广遥,王经,孙中宁
摘要(Abstract):
对窄环隙内强迫对流换热特性进行了实验研究。实验结果表明,在紊流区窄环隙可以强化换热;当Re<150时,发生传热恶化。对窄环隙内加热流体和冷却流体强迫对流换热特性进行分析,可以为窄环隙内对流换热的进一步研究提供基础。
关键词(KeyWords): 窄环隙;对流;强化换热
基金项目(Foundation):
作者(Author): 路广遥,王经,孙中宁
参考文献(References):
- [1] Crye J M, et al. Measurement of the Heat Transfer Coefficient for Mercury Flowing in a Narrow Channel [J]. Trans. ASME, 2002,124:1034-1038.
- [2] Jaco Dirker et al. Heat Transfer Coefficients in Concentric Annuli[J]. Journal of Heat Transfer, 2002, 124: 1200-1203.
- [3] 李兆俊,等.直流蒸发器换热元件单相对流传热的实验 研究[J].哈尔滨工程大学学报,2000,21(5):32-35.
- [4] 孙中宁,等.双侧加热窄环隙流道强迫对流换热[J].核 动力工程,2002,23(4):33-36.
- [5] Th.博恩,等.热力工程计算图册[M].北京:水利电力 出版社,1991.41-42.
- [6] Davis E S. Heat Transfer and Pressure Drop in Annuli [J]. Trans. ASME, 1943,755-760.
- [7] Yu D, et al. An experimental investigation of fluid flow and heat transfer in microtubes [A]. Proceedings of the ASME\JSME Thermal Engineering Conference. 1995, (1):523-530.